﻿// Copyright 2008 Chris Varley (http://www.contractdriven.net/)
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//    http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

using System;

namespace ContractDriven.CommonAssertions
{
    public class ThrowsAssertion<T> : BaseThrowsAssertion where T : Exception
    {

        public ThrowsAssertion(ThrowsDelegate testCode)
            : base(testCode)
        {
            FailureDescription = "No exception was thrown";
            ExpectedType = typeof(T);
        }

        public override bool Eval()
        {
            var exception = (T)Throws();

            return exception != null;
        }
    }
}
